Skier triggered avalanche from 40' away

"...remotely triggered slide in [YNP] today...Triggered it from about 40' away, on lower angled terrain.  Adjacent profile...(HS 137, ECTV @93, on 2mm facets).  It was on a wind protected, north aspect, around 8,800'.  The crown was about 45cms deep, and 25' wide."

Location
Pebble Creek - YNP
Out of Advisory Area, 2020-12-22